AUR: further solve `.SRCINFO` issues

Due to the release CI job running on an Ubuntu machine, we do not have
easy access to `makepkg` to generate the `.SRCINFO` using `--printsrcinfo`
as this is a `pacman` specific utility, and instead we maintain a
template.

Historically seen, something went wrong here while the `PKGBUILD` file
became more complex and certain fields added there were not _also_
included in the `.SRCINFO` template.

This commit ensures everything is restored to working state, and
provides the proper fix for what was attempted in #2917. In addition,
checksums are now included in the file.

Signed-off-by: Hidde Beydals <hello@hidde.co>

.github/aur/flux-bin/.SRCINFO.template

@@ -8,9 +8,15 @@ pkgbase = flux-bin
 	arch = armv7h
 	arch = aarch64
 	license = APACHE
-	source_x86_64 = ${pkgname}-${pkgver}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${pkgver}/flux_${pkgver}_linux_amd64.tar.gz
-	source_armv6h = ${pkgname}-${pkgver}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${pkgver}/flux_${pkgver}_linux_arm.tar.gz
-	source_armv7h = ${pkgname}-${pkgver}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${pkgver}/flux_${pkgver}_linux_arm.tar.gz
-	source_aarch64 = ${pkgname}-${pkgver}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${pkgver}/flux_${pkgver}_linux_arm64.tar.gz
+	optdepends = bash-completion: auto-completion for flux in Bash
+	optdepends = zsh-completions: auto-completion for flux in ZSH
+	source_x86_64 = ${PKGNAME}-${PKGVER}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${PKGVER}/flux_${PKGVER}_linux_amd64.tar.gz
+	sha256sums_x86_64 = ${SHA256SUM_AMD64}
+	source_armv6h = ${PKGNAME}-${PKGVER}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${PKGVER}/flux_${PKGVER}_linux_arm.tar.gz
+	sha256sums_armv6h = ${SHA256SUM_ARM}
+	source_armv7h = ${PKGNAME}-${PKGVER}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${PKGVER}/flux_${PKGVER}_linux_arm.tar.gz
+	sha256sums_armv7h = ${SHA256SUM_ARM}
+	source_aarch64 = ${PKGNAME}-${PKGVER}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${PKGVER}/flux_${PKGVER}_linux_arm64.tar.gz
+	sha256sums_aarch64 = ${SHA256SUM_ARM64}
 
 pkgname = flux-bin

.github/aur/flux-bin/PKGBUILD.template

@@ -8,8 +8,8 @@ pkgdesc="Open and extensible continuous delivery solution for Kubernetes"
 url="https://fluxcd.io/"
 arch=("x86_64" "armv6h" "armv7h" "aarch64")
 license=("APACHE")
-optdepends=('bash-completion: auto-completion for flux in Bash',
-'zsh-completions: auto-completion for flux in ZSH')
+optdepends=('bash-completion: auto-completion for flux in Bash'
+            'zsh-completions: auto-completion for flux in ZSH')
 source_x86_64=(
   "${pkgname}-${pkgver}.tar.gz::https://github.com/fluxcd/flux2/releases/download/v${pkgver}/flux_${pkgver}_linux_amd64.tar.gz"
 )